David Dahlquist is a partner in Winston & Strawn’s Chicago office focusing on complex commercial litigation, with an emphasis on antitrust, health care, intellectual property, and white-collar criminal defense.
Mr. Dahlquist was part of the core trial team for the first two consummated merger cases tried in an administrative hearing before the Federal Trade Commission in more than two decades. (In re Chicago Bridge and Iron; In re Evanston Northwestern Healthcare). He was a key participant in the trial and appeal to the FTC that reversed a divestiture order in the Evanston Northwestern Healthcare matter. Mr. Dahlquist also successfully obtained complete dismissal of a Medicare Fraud Qui Tam complaint on behalf of NorthShore University HealthSystem. (U.S. ex rel Walner v. NorthShore, 660 F. Supp. 2d 891 (N.D. Ill. 2009)).
Mr. Dahlquist also has significant experience in intellectual property matters including multiple patent trials. He was part of the trial team that successfully obtained a multi-million dollar jury verdict on behalf of Verizon related to voice-over-Internet protocol patents against Vonage. (Verizon Communications v. Vonage Holdings, 503 F.3d 1295 (Fed. Cir. 2007).
Mr. Dahlquist has also represented clients in civil and criminal price fixing investigations, complex environmental litigation, health care acquisitions, and other competition issues.
Honors and Awards
Chicago Magazine named Mr. Dahlquist as a Rising Star in 2008, 2009, and 2010 with specific recognition for antitrust litigation.
Mr. Dahlquist is an active member of the American Bar Association Antitrust Section and serves on the Advisory Board for the DePaul University Center for Intellectual Property Law and Information Technology. Mr. Dahlquist is a frequent guest lecturer on antitrust matters at DePaul University and also participates in pro bono representation and educational activities, including Lawyers in the Classroom at Chicago Public Schools.
Mr. Dahlquist received a B.A. in Political Science from the University of Illinois at Urbana-Champaign in 1998 and a J.D., with honors, from DePaul University College of Law in 2001, where he was elected to the Order of the Coif and served as editor-in-chief of the DePaul Law Review.